Sri Wiwoho Mudjanarko, Nawir Rasidi, Mohd Haziman Wan Ibrahim
Plastics and plastic goods are increasing following the development of technology, industry, and population in Indonesia. Plastic has advantages over other materials. It is more robust, lighter, more flexible, anti-rust, sturdier, easy to color and work with. Also, it can act as a heat and electricity insulator. The study uses plastic waste as an additive or component mixing fine aggregate. The research investigates how strong the concrete is due to its compressive strength combined with crushed plastic waste as a substitute for fine aggregate with a variation of 5, 10 and 15%, concerning standard strength concrete of fc 25. From the compressive strength test with design variations, it is found that the compressive strength of regular concrete decreases from 18.68 to 16.44 MPa. While for concrete with a mixture of 5%, the compressive strength drops from 16.54 to 14.56 MPa. Lastly, regular concrete’s compressive strength with a mix of 10 and 15% decrease from 14.41 to 12.68 MPa and from 15 to 14.41 MPa, respectively. The results above do not match our expectations. The casting process, the mixing process between the aggregate and the added material, and the concrete topping that does not contain sulfur-like materials can cause the cracks in the concrete uneven’s compressive strength. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Department of Civil Engineering, Narotama University, Surabaya, East Java, 60117, Indonesia; Department of Civil Engineering, Politeknik Negeri Malang, Malang, East Java, Indonesia; Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor Bahru, 86400, Malaysia